Square with Two Lines Underneath: Gentle/Delicate Drying Cycle

A tumble-dry icon—a square enclosing a circle—with two horizontal bars underneath indicates that a garment requires a Gentle or Delicate drying cycle. This symbol signifies that the fabric is structurally fragile or heat-sensitive, requiring minimal mechanical action and low heat to prevent damage, fraying, or severe shrinkage.

Quick Answer
Select the Delicate, Gentle, or Ultra-Delicate cycle on your dryer, ensuring the temperature is set strictly to low heat. This setting reduces drum rotation speed and limits thermal exposure to protect fragile fibers. If your dryer lacks a dedicated delicate cycle, use a mesh laundry bag on the lowest heat setting or air-dry flat.

What the Double Underline Means

In international textile care labeling, horizontal bars below an icon always indicate a reduction in mechanical stress:

• No bar: Standard mechanical action and normal heat.
• Single bar: Reduced mechanical action, typically Permanent Press.
• Double bar: Minimal mechanical action and gentle handling, designated as Delicate/Gentle.

When two bars appear under the tumble-dry icon, the garment cannot withstand the vigorous tumbling or high temperatures of standard cycles. The double bar serves two protective functions:

1. Minimizing Mechanical Agitation: Standard tumbling creates friction that frays fine yarns, loosens delicate knits, pills surface fibers, and weakens decorative stitching or lace.
2. Restricting Thermal Exposure: Excessive heat causes heat-sensitive polymers, fine wool blends, and delicate weaves to shrink or lose elasticity.

This symbol is standard on delicate synthetic lingerie, fine-gauge knitwear, sheer fabrics, embellished garments, and modal or rayon blends.

Step-by-Step: How to Dry Double-Bar Delicate Garments

Follow this sequence to protect fragile items during machine drying:

1. Use a Mesh Laundry Bag: Place delicate items inside a zippered mesh wash bag before putting them into the drum. This prevents straps, hooks, and fine yarns from catching on the drum baffles or tangling with other clothes.
2. Select the Delicate / Gentle Cycle: Set your machine to its lowest agitation profile. On modern dryers, this setting uses intermittent tumbling and lower blower speeds to cushion the load.
3. Confirm Low Heat: Verify that the heat modifier is set to Low or Extra Low. If your machine allows you to customize temperature independently, keep heat below 55°C (130°F).
4. Dry in Small, Similar-Weight Loads: Never mix heavy items like denim or bath towels with delicate garments. Heavy fabrics drag against fine textiles, defeating the purpose of the gentle cycle.
5. Remove While Slightly Damp: Take garments out of the dryer when they are roughly 90% dry.

Critical Mistakes to Avoid

• Do not use “Normal” or “Heavy Duty” cycles: The intense tumbling and high heat will permanently distort fine weaves, pop seams, and cause irreversible fabric shrinkage.
• Never skip the mesh bag for embellished items: Sequins, lace, and underwires can snag on other garments or warp the dryer drum lining if left loose.
• Avoid over-drying: Delicate synthetic fibers (such as nylon and elastane) degrade quickly when left in a dry, heated drum after moisture has evaporated

Alternative Drying Methods: When to Bypass the Machine

If you want to maximize garment lifespan or if your dryer lacks a true low-agitation setting, manual drying is the safest diagnostic alternative:

• Dry Flat on a Mesh Rack: Highly recommended for fine-gauge sweaters and open knits that may stretch if hung. Reshape the garment while damp and let it dry over a clean towel or drying rack.
• Drip Flat Drying: For garments with dual bars on the wash and dry tags that retain water, allow them to dry flat without wringing out excess moisture to avoid crushing delicate fibers.
• Match with Wash Settings: Remember that delicate drying should always follow a gentle wash cycle

The double underline beneath a tumble-dry icon is a clear instruction to reduce mechanical friction and heat. By using low temperatures, slow tumbling, and protective wash bags, you preserve the fit, finish, and structural strength of your most delicate garments.